Room temperature sodium-sulfur (RT Na-S) batteries offer high energy density but suffer from poor conductivity of sulfur and complex, uncontrollable cathodic products. This study develops a single-atom-charging strategy using manganese single-atom catalysts supported on porous nitrogen-doped carbon nanospheres (Mn1-PNC) to address electron transport issues. The synergistic interaction between adsorption and electron transfer enhances selectivity towards short-chain sodium polysulfides, improving electrochemical performance.